Table 3. Mean breastfeeding frequency (SD) during intervention.

	Rooming-in mean (SD)	Nursery care mean (SD)	P value
Bystrova et al. [16]	8.6 (2.0) n = 109	7 (0) n = 37	Not estimable
Perez-Escamilla et al. [32]	3.7 (2.57) n = 107	0.9 (1.2) n = 58	< .0.001